A faulty transmission control module (TCM) most often causes limp mode with the gearbox stuck in one gear, harsh jolts when you select D or R, erratic gear changes, flashing PRND letters and a gearbox or engine warning light. However, the same symptoms are often caused by a low gearbox oil level, a weak battery, a poor earth or a faulty sensor. To test a transmission control module, start by checking the battery and reading the fault codes with a diagnostic tool that can talk to the gearbox control unit, then check the power supply, the connector, the oil and the live data. Below we explain the symptoms, the diagnostic steps and what the most common fault codes mean.
Comfort control module Volkswagen Skoda 3C8937049E
Vendors's code: 3C8937049E
Product code: 3C8937049E
Barcode:
Code 39:
ISBN:
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Part number 3C8937049E - is it the right choice?
Used, working part: comfort control module for Volkswagen Skoda - numbers 3C8 937 049 E / 3C8937049E. Compare the numbers with the label of the part currently in your car.
Comfort control module Volkswagen Skoda
The comfort control module is an electronic body module that handles small comfort functions in the car. This listing applies to: Volkswagen Skoda. The part is used, working and in good condition.
Part numbers to check
- 3C8 937 049 E / 3C8937049E - VAG group number (OEM)
Typical failure symptoms
- several unrelated functions stop working at the same time,
- the car does not respond to the remote,
- wipers or lights switch on by themselves,
- the tester reports no communication with the module.
Before buying a module, check fuses, earth points and connectors - corrosion and damaged wiring cause similar symptoms.
Which car it is for
- Volkswagen Skoda - model
Fitment
Compare number 3C8 937 049 E in full with the number on your part. Different versions were fitted to the same models, so the number decides, not the model alone.
Function in the car
The comfort control module controls body functions such as interior lighting, central locking, windows or wipers; the exact scope depends on the make and version of the car.
In VAG group cars the module is sometimes described as the onboard power supply control unit (Bordnetzsteuergerät); its version depends on the equipment.
Frequently asked questions
| Which number matters most when matching? |
|---|
| It is best to compare all numbers on the label, above all the one marked as the manufacturer or OEM number. |
| What condition is this part in? |
| This is a used, working part in good condition. You will find the warranty period in the product features table. |
| Is the part new? |
| This is a used, working part in good condition. You will find the warranty period in the product features table. |
Not sure? Write to contact@auto24parts.com and we will help you choose the right part for your car.